The 13th century Palazzo dei Priori is the oldest palace in the city. With surrounding buildings it now houses a museum complex. The Archaeological Museum, with pre-Roman Picene artifacts of the 9th–3rd century BCE. The Civic Art Gallery features late-Gothic paintings. The Civic Library covers more than three centuries of history. It includes the Globe Room, which showcases a beautiful 1713 globe by Moroncelli. As of August 2020, as a COVID-19 precaution, reservations required. A Tourist Information Office is also in this complex.
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This complex includes the "Silvio Zavatti" Polar Museum, founded in 1969, with Inuit artifacts and records of arctic explorations by Silvio Zavatti and others. The "Tommaso Salvadori" Natural Science Museum has ornithology collections, including stuffed birds, from Le Marche and Sardinia. A large meteorite which landed in 1996 is here. There are exhibits of old cameras, and of pipes (for smoking). As of September 2020, the museums are said to be temporarily closed, perhaps due to COVID-19 restrictions.